76 lines
3.1 KiB
PowerShell
76 lines
3.1 KiB
PowerShell
# scripts/download-ollama.ps1
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# Downloads the portable Ollama Windows binary into resources/ollama/.
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# Usage: powershell -ExecutionPolicy Bypass -File scripts/download-ollama.ps1
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#
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# Note: Ollama only ships an NSIS installer officially. We use the
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# ollama-windows-amd64.zip release asset on GitHub instead.
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$ErrorActionPreference = "Stop"
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$OLLAMA_VERSION = if ($env:OLLAMA_VERSION) { $env:OLLAMA_VERSION } else { "v0.5.7" }
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$OLLAMA_URL = "https://github.com/ollama/ollama/releases/download/$OLLAMA_VERSION/ollama-windows-amd64.zip"
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$DEST_DIR = Join-Path $PSScriptRoot "..\resources\ollama"
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$TEMP_ZIP = Join-Path $env:TEMP "ollama-$OLLAMA_VERSION-windows-amd64.zip"
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$TEMP_DIR = Join-Path $env:TEMP "ollama-extract"
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Write-Host "=== Ollama $OLLAMA_VERSION (Windows amd64) ===" -ForegroundColor Cyan
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if (Test-Path (Join-Path $DEST_DIR "ollama.exe")) {
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Write-Host "Ollama already present: $DEST_DIR\ollama.exe" -ForegroundColor Green
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exit 0
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}
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if (Test-Path $TEMP_ZIP) { Remove-Item -Force $TEMP_ZIP }
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Write-Host "Downloading: $OLLAMA_URL"
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# curl.exe (Win10+ native) handles GitHub redirects, progress output, large files
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# better than Invoke-WebRequest. -L follow redirects, --fail error on HTTP >=400,
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# --retry 3, --max-time 1800 (30min), --progress-bar human readable.
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$curlExe = "$env:SystemRoot\System32\curl.exe"
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if (-not (Test-Path $curlExe)) { $curlExe = "curl.exe" }
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& $curlExe -L --fail --retry 3 --max-time 1800 --progress-bar `
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-o $TEMP_ZIP $OLLAMA_URL
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if ($LASTEXITCODE -ne 0) {
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Write-Host "curl download failed with exit code $LASTEXITCODE" -ForegroundColor Red
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Write-Host ""
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Write-Host "=== Manual install ===" -ForegroundColor Yellow
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Write-Host "Download ollama-windows-amd64.zip from:"
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Write-Host " https://github.com/ollama/ollama/releases"
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Write-Host "and extract its contents into:"
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Write-Host " $DEST_DIR"
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exit 1
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}
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$fileSize = (Get-Item $TEMP_ZIP).Length
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if ($fileSize -lt 1000000) {
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Write-Host ("Downloaded file too small ({0} bytes)." -f $fileSize) -ForegroundColor Red
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exit 1
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}
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$sizeMB = [math]::Round($fileSize / 1MB, 1)
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Write-Host ("Download complete ({0} MB)" -f $sizeMB)
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Write-Host "Extracting..."
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if (Test-Path $TEMP_DIR) { Remove-Item -Recurse -Force $TEMP_DIR }
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Expand-Archive -Path $TEMP_ZIP -DestinationPath $TEMP_DIR -Force
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New-Item -ItemType Directory -Force -Path $DEST_DIR | Out-Null
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# zip layout: ollama.exe + lib/ (DLLs). Copy everything.
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Get-ChildItem -Path $TEMP_DIR -Force | ForEach-Object {
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Copy-Item $_.FullName -Destination $DEST_DIR -Recurse -Force
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Write-Host (" copied: {0}" -f $_.Name) -ForegroundColor Green
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}
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Remove-Item -Recurse -Force $TEMP_DIR -ErrorAction SilentlyContinue
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Remove-Item -Force $TEMP_ZIP -ErrorAction SilentlyContinue
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if (Test-Path (Join-Path $DEST_DIR "ollama.exe")) {
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$ollamaSize = (Get-Item (Join-Path $DEST_DIR "ollama.exe")).Length
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$ollamaMB = [math]::Round($ollamaSize / 1MB, 1)
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Write-Host ""
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Write-Host ("Ollama installed: {0} ({1} MB)" -f $DEST_DIR, $ollamaMB) -ForegroundColor Green
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} else {
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Write-Host "ollama.exe not found after extraction. Inspect the zip layout." -ForegroundColor Red
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exit 1
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}
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